Before taking methyldopa, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease (such as hepatitis, cirrhosis), low red blood cell count (anemia), heart failure, pheochromocytoma, a certain genetic condition (glucose-6-phosphate dehydrogenase deficiency).
This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
Older adults may be more sensitive to the side effects of this medication, especially dizziness (more likely when standing up), fainting, or depression. Dizziness and fainting can increase the risk of falling.
Tell your doctor if you are pregnant before using this medication.
This medication passes into breast milk but is unlikely to harm a nursing infant. Consult your doctor before breast-feeding.
Dizziness, lightheadedness, drowsiness, headache, stuffy nose, and weakness may occur as your body adjusts to the medication. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: swelling ankles/feet, unexplained/sudden weight gain, fainting, muscle spasms/uncontrolled muscle movements, missed/stopped periods, decreased sexual desire/ability, increased breast size (in men), mental/mood changes (such as depression).
Methyldopa has rarely caused very serious (rarely fatal) liver disease or low red blood cell count (anemia). Tell your doctor right away if you develop any symptoms of liver disease or anemia, including: unusual tiredness, fast heartbeat, unexplained fever, dark urine, persistent nausea/vomiting, severe stomach/abdominal pain, yellowing eyes/skin.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
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Information expires June 2016.